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The following day, Giovanna was taken to the doctor's, where she did a pregnancy test before being rushed for an ultrasound.

The scan revealed her enormous growth.

And later, after undergoing surgery to remove her 10-kilo tumour, the brave teenager was diagnosed with ovarian cancer.

"They removed her ovary along with a 10kg tumour," Ange told us.

"Giovanna recovered in hospital for the next five days.

"By this time disbelief had worn off and we were all upbeat about going home, and of course Giovanna was over the moon with her now new figure and flat tummy. [But on] May 8, 2012, we were rushed down to Melbourne to be told Giovanna had ovarian cancer."

The schoolgirl, who had undergone the operation at Victoria's Royal Children's Hospital, subsequently underwent chemotherapy.

Giovanna's enormous tumour was found after an ultrasound scan (Image: Supplied)

The schoolgirl underwent gruelling chemotherapy, but her bump started growing again (Image: Supplied)